Home / 10,123.26-15,186.72-4,579.22

Finding the Fourth Proportional to 10,123.26, 15,186.72 and 4,579.22

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Solution

The fourth proportional to 10,123.26, 15,186.72 and 4,579.22 is: 6,869.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,123.26 : 15,186.72 = 4,579.22 : x
  2. Step 2: Convert to fraction form
    10,123.26/15,186.72 = 4,579.22/x
  3. Step 3: Cross multiply
    10,123.26x = 15,186.72 × 4,579.22
  4. Step 4: Simplify right side
    10,123.26x = 69,543,331.96
  5. Step 5: Solve for x
    x = 69,543,331.96/10,123.26
  6. Step 6: Final answer
    x = 6,869.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.